But they did not have a child, because Elizabeth was barren, and they were both very old.

"And look, your relative Elizabeth has also become pregnant with a son in her old age -- although she was called barren, she is now in her sixth month!

For this is certain: The days are coming when they will say, 'Blessed are the barren, the wombs that never bore children, and the breasts that never nursed!'

For it is written: "Rejoice, O barren woman who does not bear children; break forth and shout, you who have no birth pains, because the children of the desolate woman are more numerous than those of the woman who has a husband."

By faith, even though Sarah herself was barren and he was too old, he received the ability to procreate, because he regarded the one who had given the promise to be trustworthy.